tach wont go up to 6000-7000 rpm
my eg6 has a d16z6 when i push the car near to 6000-7000 rpm it gets stuck to 5000 rpm but my vtec is working....sumtyms my needle goes to 6000rpm then goes down.....whats my issues....i have issues with my clutch releasing bearing i think...dats wat the mechanic told me....is it the clutch or sumthing else.....